@Cakey87 you do benefit from the increased limit being reported but it’s not always beneficial to have low or zero credit utilisation (paying off in full).
Tymit Booster does allow you 12 months zero interest (I believe) so it may be worthwhile doing what I do by spreading all payments over the limit (I can only do 3 months) and making my savings earn interest in the meantime.
It means you are reporting a limit and use of the credit line to show you can responsible be given credit and not miss payments.
This is not advice as such, just a thought. You do you