Well it turns out the original month of IPTV I purchased on October 1st is still active and Smarters Pro says it's due to expire 5th March 2026, I wish I new this before I bought another month.
I've now setup another new 4K Firestick with Tivimate as the player and everything works perfectly. I just need to print out a label and stick it on the box for Dads Christmas present saying.... *Dad's Dodgy Box*