Sony-europe

Bought the A7 IV and FE 70-200 GM II from Jessops Glasgow (excellent service btw). Registered both on mySony. Got sent 3 codes from Sony after purchase of A7 IV to claim £100 of next 3 lenses I purchased. I tried 2 PC's and 3 browsers on link they sent to my email. Even had to reset password a few times just to get the items registered. Every time I tried link I got a message saying unable to connect to server. I ended up entering purchases on last attempt at changing password. I replied to the email with the refund codes outlining my problem. Support got back to me asking for:
A copy of the VAT receipt
A screenshot showing the registered products online (camera and lens)
A screenshot from the confirmation email you received after the registration
A picture for the serial number sticker
The name of the campaign you are trying to register for
What is the e-mail address used for registration
The email that you received for the vouchers claiming

Perhaps I'm expecting too much by purchasing from a recognised Sony dealer and registering online all my details but obviously Sony.eu processes for collating data are not up to the task. I will be returning to the Glasgow store and seek a refund/exchange for another brand. Hopefully one that has an understanding of the meaning of customer support. I sent an email to that effect to sony, their response:

Dear Mr. Shaw,
Thank you for contacting Sony support.
With reference to your enquiry regarding your Sony camera, we are sorry to learn that you are unable to claim your vouchers for cashback.
In order for us to fully understand your enquiry and offer proper assistance, we are seeking your kind patience to provide us with further explanation on the below and any further clarification you would like to add:
1- A copy of the VAT receipt.
2- A screenshot showing the registered products online (camera and lens).
3- A screenshot from the confirmation email you received after the registration.
4- A picture for the serial number sticker of the lens and camera which is located at the bottom of each product.
5- The name of the campaign you are trying to register for.
6- What is the e-mail address used for registration?
7- The email that you received for the vouchers claiming.
Should you have any further questions, please feel free to reply to this email.
Thank you for your enquiry.
Yours sincerely,
Kariem