Membership Cancelled - Still Waiting on Refund

In March of this year we sold our RV and cancelled our Good Sam Membership including the Emergency Roadside Assistance. At that time we were advised that a refund of $173.31 would be issued for the unused portion of our membership fee. It has now been over ten weeks and we have yet to receive a penny of the refund despite being told on two separate occasions that the credit had been already issued back to our credit card. This morning I was told that a request for a "check" was issued ten days ago after my last phone call but the amount was significantly less than what we were originally advised we were due. So far no one has been able to adequately explain why it has taken this long to receive our refund much less explain the discrepancy in the amounts. The standard answer I seem to get is we should receive the refund in approximately two weeks. Two weeks has already turned into 10+ weeks and counting. I would love to put this issue to rest once and for all.