VITALITY DOUBLE DEBIT

My Vitality debit order was reversed erroneously, and i immediately called through to Vitality and was advised i need to make a EFT payment and send the pop through to discovery which i did. To my surprise i was double debited at the end of the month and ever since i have been following up on the confirmation of the refund to no success. Today i called through again and was told i need to speak to MMED and it's been a pillar to post ever since being transferred back in queue from department to another.