Mortgage TRS- had 3years before will I get remaining 4?Hi.

I purchased a property about 6 years ago and claimed TRS. About 3 years ago my partner bought me out and I rented and claimed rent relief. I will soon complete the purchase of another property.

Will I get the remaining 4 years tax relief or will I only get 1? Or none at all as I'll no longer be a FTB.

Thanks