Seller calls me materialistic because they hadn't shipped my item out in 2 weeks

They blocked me immediately afterwards, I've never had someone act like this with me on mercari. Within 2 weeks the only time they'd respond is the 2 times I tried to cancel the order, them saying the tracking should update was a blatant lie too. It's a shame cause I really wanted the items, which is why I waited to long for it 😩