I have this client for an online service, in our email, he says everything is great and approved the final work. But just yesterday, I received an email that the buyer claims unauthorized transaction, why is this? How long does this take? What are my options? Now my balance is negative.
I have already sent our email thread where the client clearly stated that he approved of the work, and we are in the next phase. In fact, the client still owes me a final amount to complete the project. I also sent email to the client, no response yet.