iPad 7th Gen digitiser recently replaced, week later now the screen is black and can still hear clicks etc but nothing on screen

As described, your iPad has developed a hardware fault that - short of an additional repair - you’ll not be able to resolve.

Normally, you would require an repair by Apple or an Apple Authorised Service Provider (AASP). Unfortunately, having already had your iPad previously repaired by an independent repairer, you have forfeited all hardware or repair support from Apple.

When repaired via Apple, in lieu of repairing and returning your existing iPad, qualifying iPad models are usually exchanged for a renewed/reconditioned device of the same model and specification. Apple will not offer this service for devices that have received an unauthorised repair.

You will need to seek assistance from whoever previously attempted to repair your iPad.

Lyndsey1979 wrote:

7th Gen IPad 128gb the digitiser was recently replaced

Was this done at an Apple Store or Authorized Apple Service Center?

• Yes. Return there and seek assistance.
• No. You had an unauthorized repair done on your iPad. Apple will no longer be able to assist you with this device.