Leakage in the neighboring flat

[MrsYip]

The surveyor report highlighted that there's high damp meter readings in the flat which I have made an offer to buy. After clarification with the surveyor, he said it's likely due to leakage in the next flat.
I am from other countries and are new to the UK. Normally, if there're such issues, are the neighbors obligated to fix it? Or it is very likely to become a big trouble since neighbors could ignore it?

It's big trouble. You can't make the neighbours do anything to their own property if they are the unreasonable sort or if they simply don't have money.
Plus damp is hard to sort.
Avoid sorry

Is there a managing agency? I've had this issue, and the agents got the owner of the other flat to sort it as it's a breach of leasehold rules.

My solicitor has not yet received the contract pack yet, so not know if there are such terms with the managing company.

It's true that when it's involving the neighbours, it's out of our control. I choose this property since it fits the budget and also because of the location. There are very limited choice so I really hope there are some ways this issue could be solved.

My case does not involve mortgage. But may I ask, normally, how mortgage lender would do if there's high damp meter reading in the survey report? The exact wording in the report is "high damp meter readings in the hallway which may be a result of a leakage to the neighbouring bathroom fittings" I understand mortgage lender may request for a damp survey. But would damp survey be sufficient to determine if there's leakage to neighbouring area? Or since leakage next door is a very risky issue, it's likely the mortgage lender would simply choose not to lend in such case?