bad service

I bought a 30 litre microwave at game firstly there was no one to even assist me to pick it up and it was heavy, actually there was staff members around but chatting not even caring about assisting me. When I got to the till the cashier didn't even acknowledge me and she didn't even try to help me to pick up the microwave to scan it on top of it when she was done ringing up my staff she packed up her till and left me there not even a thank you, I had to put the things inside plastic bags and then still pick up my microwave put it back inside the trolley. I wasn't looking to be treated like a princess or something but a bit of help from anyone who works there would have helped instead of everyone just ignoring me while they can see I need help.