Bad service and send Spam once they know your number

Sent a whatsapp query and didnt recieve a reply. After sending a second message, I received a reply an hour after the message was sent. I had asked if they accepted images for flyers in CMYK and Jpeg format - to which the reply was "The cost for flyers is.... for single sided and .... for double sided. Question not answered correctly. I then asked them if they provided a digital proof for the images and was left waiting for an answer until today (1 month to the day). A few days later I started receiving sms marketing from them. I once again whatsapped them and asked why they were spamming with their advertising without my consent. I threatened to leave them a bad review on Hello Pieter if they did not remove my name from their marketing list. And here we are - name not removed - spam persists. Dont whatsapp them, they will not answer your questions correctly and they will use your number to spam you with their marketing.