Ok ... first if your spam filter did not let the emails thru then it is YOUR spam filter that needs educating.
Next ... if you cancelled the account AFTER the deadline then you just need to follow the instructions to get a refund after they billed you... you do not need to wait on the phone all day...
If you missed the cancellation deadline, simply wait until you receive your TurboTax product, then submit an online refund request within 60 days of receipt.
And ... confirm you have permanently cancelled the advantage membership:
