Pathetic Service

I purchased a shoe on the 26th of June, which was supposed to be delivered on the 1st of July but wasn't & then I followed up on Tuesday the 7th of July & they said I must wait for 24hrs, they will confirm with the courier company & nobody bothered to contact me after that, I followed up again on the 9th of July & they told me the same thing, after a back a forth conversation with a lady called Anna, she then told me that my parcel was at the store already, they just going to scan it & send me a confirmation email to collect, but instead I received an email on the 10th of July offering me a refund because the shoe is out of stock, I am really disappointed with Zara. I wouldn't advise anyone to buy on their online platform.