You might get lucky, I took a year off but found one of my site memberships (which is all "UKARA" is) was still accepted.
If you're planning to play at the same site that issued your membership, I'd ask them if they can renew it. They might be more minded to do it if you ask on-site while playing.
If the answer is no, you can still ask retailers if they'll sell to you anyway. They're in the business of selling, not of not selling. Some are sticklers, some don't really care, some even run their own completely bogus schemes. You'll find a way.