If you have non-transferable and transferable Tibia coins, which type of coin gets used first?

Question

Let's say I get non-transferable Tibia coins but I have transferable Tibia coins and I want to buy something from the store, what coin gets used first?

Answer 1

I checked it before few minutes and: you'll loose non-transferable Tibia Coins as first .

I had 2030 TC - 1440 red, non-transferable TC and 590 purple, transferable TC.

Then I bought XP Boost for 30 TC. Amount of transferable TC is still the same.

Worth to mention, that non-transferable Tibia Coins in my case are newer, than transferable ones.