Marvel Insider points

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Joined: Mar 12 2018
Posts: 9
Marvel Insider points
Having saved up Insider points for several months, I just tried to redeem the 8500 HP offer for 300K points again and was told I could only do this once. Has anybody redeemed this more than once or is it a one time offer?
Please help. 
I did not find the right solution from the internet.