Why can't I buy my Daughter a Trac-Phone?

I am a grown man, and I get reamed out for buying my 10 year old daughter a trac-phone. My ex sits there and tells me my daughter will be busy with projects this weekend and that weekend, and I will hardly get to see her. I am already having a hard time connecting with my daughter as it is becuase her mom has slandered me so much she doesn't respect me. Mom has control of everything. So I buy a trac phone to help me keep connected with my daughter, and her mom get's all self-rightous on me as if they are "Amish" and don't beleive in material possesions or luxerious items, and that I should have bought clothes with and new shoes with the money... what the???? I plan I buying all of that too!... what the frick? This custodial parent playing the trump card of shame and the court system on the non-custodial parent is bull crap. I am getting sick and tired of having my "intelligence" and "maturity" level being challenged all the time. To all u smart alecks who reply: bite me!