I'm left in a difficult situation where I have already purchased the product from a seller, and the transaction has already been completed. But now I wish to purchase the source file from the seller and he is going out of his way not to respond to me. I've seen him come online multiple times to check my messages, but he continuously chooses to ignore me. I don't understand why because we had such a good level of communication and I tipped him handsomely. This behaviour is rather odd and frustrating.
Is there anything I could do such as contact fiverr customer support to help me with this issue?