Horrible! Dissapointed!

I am very disappointed in the service received. it would have been the first time using them, thinking that I would get great service, turns out that is not the case. On the website there was one option that showed delivery for 05/05/2020 (flowers) so I placed the order and made the payment straight away on 02/05/2020 in the evening. I received an email this morning saying they received my proof of payment too late so the order will be delivered on 06/05/2020. this is not ok, as it is my grans birthday and I wanted to send her something special since I have been unable to see her over the lockdown period. Do not say on your website that you can do it on a specific date and then let me waste my time and my money for nothing! I have requested a refund due to this utter nonsense! I will never use or recommend Net florist ever again!