Removing items from Order history to avoid refund

I placed and order 12 October #***8 and paid online. This order included 2 watches. I was not satisfied with them and requested to send them back. The return was logged MRRN-zbarp-6nz5. Collected from me all good. Few days later receive an email confirming they received the return. The my account was only refunded for 1 watch. I then sent them a email regarding this. After a stuggle i received an email that the 2nd watch was refunded on the 3 November. But no credit was added to my account. I followed up again. Then i checked my order history and the 1 watch was removed from my original order it shows now I ordered only 1 watch. I follwed up again. Today i received an email that i must please arrange to have the 2nd watch returned to them with a new return generated MRRN-c6ep5-5jq9.