$200 prepaid mastercard offer

I signed up for new internet service and it was activated on 9/8. I was sent an offer in the mail that included a $200 prepaid mastercard. I was told that I needed to have the service for at least 90 days before the card would be sent. It is long past that and I haven't received it in the mail or in an email for a virtual card. The offer number on the front of the card was R0112996. On the front it says "Requires purchase of internet plan. Fulfilled via Prepaid Mastercard $200 value on 1 gig internet and above".  I can send a picture if someone could email me about this.