Mamas with natural hair babies .. my daughters hair is EXTREMELY curly..which her father, her…

Mamas with natural hair babies .. my daughters hair is EXTREMELY curly..which her father, her grandmother (grandpas girlfriend/fiance) and I LOVE ... but as for her other grandmother(Her dads biological mother) everytime we send her over and send hair products we want her to use she ALWAYS ALWAYS ALWAYS doesn't use them(YES WE CAN TELL) She always uses EDGE CONTROL and GEL on her head and she swears she doesnt only use that and it drives me crazy cause I knew BEFORE I used her bathroom a few weeks ago and SAW the hair products she used (HAIR SPRAY, HAIR GEL AAND EDGE CONTROL) she told my boyfriend we need to lay it down 🤔🤔 like girl her hair lays fine when I do it soo what's your issue?! What should I do? I'm getting annoyed with it and you can SEE her hair thinning which is why I haven't been letting her come get her