Hi @Mark9944
You would need to pop the device into a Vodafone Highstreet Store where they would send it away to be assessed. The Repair Centre would then report back to Vodafone on the costs which you would then be asked to authorise the work and costs or decline and they'd send it back unrepaired.
Until they've asssessed it then a costing wouldn't be possible as further work maybe required apart from what you've seen.
Tip >
Repairs.
"Also make sure when sending your device for repair that you keep hold of your SIM. You also shouldn't send your memory cards, battery and/or back cover (if they're removable) - if these are included with your phone when it goes for repair we can't guarantee their return."
Take time and date stamped pictures of the phone with one of it turned on if possible to prove its aesthetic condition and ask the Vodafone Store employee to note its condition on their computer system.
If the water sensor(s) are visible then take a picture of that too.
I think it's worth mentioning Manufacturing Warranty wouldn't cover accidental damage.
The sticker shouldn't affect anything as this information i.e. The imei and serial number are within the phone. However if any seals are broken indicating any unauthorised Repair or inspection then there is a good chance Vodafone won't carry out any work on it.
Current Phone >
Samsung Galaxy s²³ Ultra 512gb Phantom Black.
