can't activate rebate

I too have been trying to get my $150 Mastercard for 4 1/2 months 5 phone calls,11/2-2 hours apiece, 3 different departments 4 different representatives. 4 or 5 emails, never working, waiting 5-7 days each email finally gave them a time allotment after being told friday(today) positively and no email. Over shot my time limit by 1 hour(11/2 total) 2 more emails still not working, blamed bank for dysfunctional emails today. Presently looking for instructions to return equipment and cancel account. Required I pay my 1st bill, now paid 4 ontime and in full. Promo went from Mastercard to digital Mastercard, requested hard card another 15 days, sure ya don't wanna apply to bill, and still no card no resolution in sight. Done!! Don't want to support a company that don't support their customers.. also that dont honor their own word