Mpell Solutions Mpell gift card received thru ADT not accepted by vendors Encinitas California

ADT Security Systems had a promotion which offered a $99 installation fee, paid upfront but then you would receive a a $100 gift card from Mpell Solutions after system installed. In order to get the $100 gift card, you had to go to a Mpell Solutions  web browner and print out the reward certificate. Page 1 of the contract is sent along with the completed reward certificate along with a $4.95 casher check or money order  The gift card was received approx 6 weeks later. In ordr to use the card it had be registered online, which I did. Guidelines, if card not used for 12 consecutive month of inactivity a $2.95 fee be assessed monthly. Relacement card fee $5.00.  After I registered the card, per the instructions, I attempted to use it for an online purchase (as instruactions indicated it could be used for ) The card would not be accepted. I tried several times, and again, online purchase would not accept the card.  So what is going to happen after 12 months since I cannot use the card, are they going to bill me the monthly fee.  Beware of this rip-off gift card.