Product: Money transfer, virtual currency, or money service

I tried selling an XXXX XXXX XXXX on XXXX and typically use paypal as the intermediary to help me collect my money for selling my products online. I have sold numerous items in the past but for some reason, selling this XXXX XXXX XXXX has become a complete nightmare for me. 

I don't have all the exact information because the information is in my paypal account currently and Paypal refuses to allow me to log into my account. 

This was maybe a year or two ago, but I offered a XXXX XXXX XXXX on XXXX   for pretty cheap because I was trying to get rid of it. Once a buyer accepted my offer, I proceeded with the usual steps one takes to ensure that the transaction goes through. I paid for the shipping fee that was coming out of my pocket to the buyer and thought that would be the end of this transaction. 

However, for some reason, despite my delivery and payment of shipping to the correct provided address, the buyer never ended up taking the product. The package has most definitely been redelivered numerous times, each time ending up as a failure. So, eventually my XXXX XXXX XXXX was returned to me and the transaction for almost selling my XXXX was reversed on my Paypal account which makes sense. 

HOWEVER, despite being the responsible seller of the product that fulfilled every part of the transaction, Paypal then decides to unjustifiably charge me an additional {$150.00} without cause somehow even though I was the seller of the transaction and have already returned the funds I would've received from the sale of my Ipad. I have spent numerous hours and different days explaining my position to the customer agents at Paypal but they never ended up doing anything. 

To make things much worse, they eventually sent the charge of {$150.00} to a debt collector, whom I've also spoke to and explained my circumstance but to no avail. Each time I try resolving this simple issue of overcharging the wrong person, I would get the response from the agents at the debt collection agency. 

" Sir, you need to speak with paypal customer service representative to resolve this issue because we can not do anything on our end. '' Then, the debt collection agency would patch me through to a paypal agent or customer representative. The hilarious messed up part of this whole experience is that the moment I reach a paypal agent or someone, the phone call would just get dropped as if they are purposely not allowing me to contact them. 

So, not only are they preventing me from accessing my paypal account that has all the information of the transaction and delivery tracking number, they constantly refuse to talk to me. I have reached out to them probably over 10 times over the last few years & months all at random times and dates only to experience the same behavior by the people at Paypal over and over again. 

In fact, at some point, I realized I couldn't even reach the paypal agents if I wanted to to try and resolve a problem they wrongly put on to me. Each time I call Paypal now, I immediately get transferred to the debt collection agency. And each time I explain my circumstance to the debt collectors, they patch me to paypal supposedly and paypal just immediately hangs up on me. 

I have never been more frustrated, annoyed, and pissed-off angry at the service provided to me. I'm not even sure how to go about fixing my problem because the customer representative of both Paypal and the debt collection agency keep sending me to dead end solutions with no possible resolution. 

I am very frustrated by the way I have been treated and am certain that if I were to take this into any type of court, I would most definitely win my case for the representatives at Paypal have absolutely no excuse for their behavior and actions against me.