Charged the wrong amount on credit card

I purchased an item for $92.00 plus $8.00 shipping. The receipt showing $100.00 total is in my account. But my credit card was charged $161.25. I'm fighting the incorrect charge with my CC...this not the first time I've had a problem with an item that I've had shipped. Obviously I'm not going to purchase items with shipping again on here but have others had similar issues with Offerup?
Level 9
@Pinkbutterfly sounds like CC company problem.
No it was Offerup that over charged me. Two months and many messages later they SAY that they will refund my money. Needless to say I'm not holding my breath...