Please do not mail anything to me

My mom recently tried to send me a package and even though it was with UPS, it failed to get to my house due to tax issues and because I didn´t have time to get there last week, it is now being sent home. I called the company numerous times last week and emailed several times. They never responded and now I am a little angry. Mexico isn´t the US and the more I live here little things frustrate me, like how some business operate, even US companies like UPS. I was told don´t us US mail but it looks like private companies like UPS are terrible too.

I will be home soon so there is no need to mail things. Thanks though!