As I see it , you have used those verbs to express something that you have decided in that moment, I'll see you, I'll chat you. In that case you can use both verbs without problem, It sounds great and normal to me. But, you should wait for someone who has more knowledge in this area.

Hi :) For answer your question, present is what we use in Spain to talk about comun things, like habits, is the most useful verbal temp in our language, on the other hand, future in indicatif is just used to talk about things in a close future. So is not common change them, their use is simple.