How to ask my sugar daddy for more without making it awkward?

Hey, I need some advice because my situation feels complicated. I have a sugar daddy (he’s 50, I’m 21) and since the start of our relationship he’s only given me a little bit of money (very not much). He offered to take me to Miami with him, but I can’t go since I’m a student in France and still living with my parents (so my freedom is pretty limited right now).

The real issue is that whenever I ask him for money, he always finds a way to push back, like “but I already gave you some two weeks ago,” or he just avoids the topic. We actually stopped talking for 4 months, but he came back telling me I was his best relationship and that I’m genuinely authentic.

I do like him and want to continue, but I’d like things to be less complicated when it comes to asking for what I want. Any tips on how to be more clear, direct, or just make the money talk less tense ?