I ordered an iPhone 7 from website but after 2 wee...

I ordered an iPhone 7 from website but after 2 weeks phone still hadn t arrived.
I cancelled order after waiting nearly 2 hours on hold, refund was organised as of 31/07/19 but I am yet to receive my refund I have had to email twice now regarding refund got a reply saying I had to wait 14 working days, as it s now exceeding 20 days, and as of yet still not received it.
I will need to now take legal action to get my own money back, very poor service indeed.
Ref number ID241407
Andrew Gregory