I was charged for 3 times for a cancelled order

I can't believe I was charged for a cancelled order for the 3 time this morning.

I was charged the second time on 8th July which was already unbelievable for a cancelled order. So, I immediately reached out  to the customer support. they dealt things slowly I have to say.

And today I was charged the third time for this cancelled order! that is so annoying and ridiculous and it seems that Dell can charge whenever it want for a cancelled order. I am worried for the safety issue of my card and so disappointed with the Dell. I will never buy and tell my friends not buying any Dell product!