Refund for cancelled ticket over 2 months still hasn't been paid

I cancelled my ticket with Greyhound in July for refund option. They further requested me to complete a refund form and submit supporting documents which I did on the 9th of July, I was advised that the refund will be processed within 21 days till to date the refund hasn't been paid. I have made numerous calls and I talked to different agents and I was told about the refund backlog and advised that monies will be paid by the end of August. I waited for the end of August and made calls to check the status of the refund. One particular agent by the name of Kuvesh, promised to call me back but failed to contact me. Its been 2 months waiting for Greyhound to pay my money.

Pay my money ASAP

TICKET NUMBER GHA3QG01