Their service was very bad..

Their service was very bad..
I bought an iPad from their site on 11 nov 2019.
They said it would arrive in seven days.
But it did not arrive on time.
I contacted them after 15 days and I was given another date to deliver the iPad.
They did not keep their promise.
After that, I asked to cancel the order on 5 Dec 2019 and they have not returned my money yet!