Vitality Apple Watch - unable to complete the transaction

I took up the offer for the Apple watch, processed the payment on line and went in to the store. After processing at the store I was supposed to receive an OTP. We tried numerous times and eventually called the call centre. After hanging on the line for 15 minutes I was told that it would take 3-5 days to resolve. This means I have to once again return to the store and likely face the same issue again.