I was able to redeem 2000 UA miles this morning, so the account is not suspended or deactivated. However when I tried to redeem 1000 AS miles the site wanted to send verification code to a cell phone number that was used only once over 2 years ago and was no longer a valid number. There is no other way to submit a new cell phone number for this purpose, not on the redemption process, not in My Details screen. So I initiated another message to ask HOW to add a cell phone number to the account.
I do not remember whether one can only make a single redemption per day, regardless different rewards. I know for many rewards it is one per 30 days. There is no information to be found on the site about the rules.
Meanwhile, the Survey tab remains No Surveys Available. Hopefully someone at eRewards would eventually address this issue and fix it, like it happened in November.