I must say, I like Canva's online services and platform. However, they steal from you and the customer service sucks. I had a free trial of Canva for Work and cancelled before it was up. Canva went ahead and charged me $119.40 for a year's subscription anyway. I have used their website to contact them 3 times about the error. No response. They have no phone number you can call or other way to contact them. My bank also has been trying to contact them to no avail. I strongly suggest you not leave your credit card info on their site: it seems they will charge it without authorization, and trying to get your money back will be frustrating at the very least.
UPDATE: I finally got Canva's attention by posting this review to Twitter and Facebook. They responded via Twitter in about 2 hours and, after a bit of back and forth, they refunded my money in full. Sadly, it seems that the way to get their attention is to bash them on Twitter.