Product: Credit card or prepaid card

I was approved for {$7500.00} credit furniture XX/XX/XXXX. My purchased totaled {$7200.00}. I still have damaged items and tried to resolve the issue. Still after a year, I have issues and I am getting charged a ridiculous amount for interest. I've had weekly deliveries after spending since the middle of XX/XX/XXXX to refurnish our new house and the delivery/logistics was terrible. The item/s were scheduled for delivery and either the wrong piece was delivered, items were damaged or half of an order showed up and nobody knew what happened. Not to mention, my orders kept getting pushed back further and further without contacting me. As I mentioned, items were scratched and damaged and learned after 2-3 times to refuse the delivery. After 5-6 attempts to correct a few items, missing work and waiting for hours each time, Im hoping to get assistance with this issue. 
I thought was great to take an advantage of the XX/XX/XXXX Savings last year with interest free for one year. I'm so disappointed. I have exhausted hours at the store, making sure our house was put together the way I pictured. The store staff were very supportive, assisted me in a timely manner and scheduled the items for delivery. I was sleeping on an air mattress for months after being in an automobile accident. I  received a call saying the mattress would be in on XX/XX/XXXX but the mattress wasnt on the truck and only two of my dining chairs showed up. Nobody was aware of anything. After long wait times on hold, I found out the mattress was canceled for some strange reason and now  the other chairs were scheduled for XX/XX/XXXX. My daughter and I spent 1 1/2 hours that Saturday trying to resolve the mattress issue and we personally hauled a mattress ourselves from the store thinking since the foundation was coming that afternoon. ( attached pictures ) Nothing showed up. I went back to the store again the next day, waited  an hour and made sure the delivery was set again. I received a call from delivery and said I am scheduled and they would be there XXXX. Then another saying the delivery would be here in 10 minutes. After waiting 1 1/2 hours pasted the scheduled window, I called the 1-888 and waited on hold for 20 minutes to find out my item never made it on the track. NO CALL, NO SHOW. 
Its beyond ridiculous. I had many attempts to replace purchased items but I still have damaged items and I didnt have any luck with customer service until last month in which XXXX XXXX discounted the three items and credited my account {$810.00} on XX/XX/XXXX for Dining Table, Master Dresser and the King Head Board which I still have. 
In the meantime, the finance company, Synchrony Bank has continued charging me interest, late fees even on the items bought on the promotional sale. The letter dated XX/XX/XXXX, Synchrony Bank stated they would apply no interest to the remaining balance. 
My monthly statements do not even show the items and amounts as XXXX shows them which is very confusing. 
I filed a claim with the BBB and I received a letter from Synchrony stating all of my purchases have been resolved and included signed delivery receipts which only one is my signature. The others were not mine. 
I have exhausted so much time trying to resolve this. My last invoice in XXXX now shows an additional {$2000.00} interest for the items I purchased not to mention all of the other interest charges since XX/XX/XXXX. 

Estimated Deliveries Dates XXXX not sure of exact delivery dates for other items. XXXX XXXX in incorrect ) Estimated Deliveries Dates XXXX not sure of exact delivery dates for other items. Sales Order in incorrect ) XX/XX/XXXX XXXX Dresser XXXX ( damaged XXXX XX/XX/XXXX XXXX Sofa Table XXXX ( damaged XXXX XXXX Sofa XXXX XXXX Sofa-chair XXXX XXXX Sofa-corner XXXX XX/XX/XXXX XXXX Round Table XXXX XX/XX/XXXX XXXX Side Chair ( XXXX ) XXXX XXXX Console Table XXXX XXXX End Table XXXX XXXX XXXX XXXX XXXX Replaced with the correct XXXX XX/XX/XXXX XXXX Sofa Table Replaced damaged XXXX XXXX Dining Table XXXX ( damaged XXXX XXXX Dining Base XXXX XXXX Dresser Replaced XXXX XXXX damaged again )