Product: Credit card or prepaid card

While going over my prior ( XXXX 2017 ) months Billing statement i went and looked at the interest. I have been noticing it was n't adding up and made a mental note to talk again to the company about it. In the Interest Charge Calculation box Annual Percentage Rate : 25.74 % ( v ) Balance Subject to Interest Rate : {$5300.00} Interest Charge : {$110.00} Which based upon the two things above, it should have been {$110.00}. When I reached out to their online chat the People I talked to attempted to tell me that my interest is based on my Previous balance. Which I told them no its not, I gave them the Definition of Balance Subject to Interest Rate. Also The Previous balance of which was $ XXXX@25.74 % equals XXXX. So still not the Interest that was charged.. Mind you Both the XXXX representative and his supposed Manager both told me this.. That that is what my interest is being based off of. And they both stated that it was {$110.00} but I was charged XXXX.. I went around and around with them. They not only continued to lie to me, they continued to argue with me about the Balance subject to interest Rate. I became Irate. and I am still very angry. I have looked through many of my prior billings, and honestly not a single one of them has the Balance Subject to Interest rate and Annual Percentage rate does n't add up to the interest. Some are higher and some are lower than what the interest charged should have been. Some are exceedingly higher. They have literally been screwing me out of extra money on top of this extremely high APR. Of which they recently changed in the last few months. from 25.49 % to 25.74 % of which I did not authorize. Also when I told them one of the many replacement cards they shoved down my throat did n't arrive and I did n't have it and to cancel the card. So what did they do they made me a new account number all together. This is unnecessary. I did not ask for that. They refused to accept me telling them I DID NOT WANT ANOTHER card and they sent me a new card. After this is when my interest rate changed. I know that the backs of credit cards have security numbers, cancelling the card that never showed up was all that was needed to be done. I did not need a new account number. Also like to note that the statement never says the statement dates. Aka This date to this date is the billing cycle. It never shows it. And I really started to wonder if they might be doubling up on days they 're charging interest. I found that my " Payment Due Date '' Is on the XXXX of every month. I figured this meant thats the closing date. I made a payment to the account on the XX/XX/XXXXthinking it would go on the XX/XX/XXXX billing Cycle. No it showed up on the XX/XX/XXXX billing cycle. I have no idea what the actual billing cycle is. So that I can adequately make my payment at the beginning of it. Over all This company has done many MANY MANY MANY Shady things over the last year especially or its just now that I 'm starting to catch on to these guys. I am thoroughly at my wits end. I can not seem to get this money off this card fast enough. Help me please, they should n't be allowed to scam people on interest like this.. I 'm not talking aboutthe APR but the fact that the Balance subject to interest and the Interest charged has not been adding  up. This is scamming. Please Note on my screen shots at the end, I gave up being polite, and courteous. My language is profane, and it is angry.