I have my birth classes at the 28 of this month ! they told me to call them I did 3 times and those…

I have my birth classes at the 28 of this month ! they told me to call them I did 3 times and those 3 times I left a voice message ... no reply -.- called my doctor told them about the problem,they give me another number ! guess what ?!?! same BS! -.- someone has to give me answers at the hospital Tuesday !