Marks and Spencer food return policy,question

I've not returned food before as I only discovered a problem after opening it. However, when I've complained to customer services about eg a burst yoghurt or rotten piece of fruit discovered too late, they've always reimbursed me no questions asked.
A tin might be different. Why not just open it and use it? Fish is good for one.

Typo *best by sorry

They do take back foodstuffs if they are —off before use by/best buy dates.

I think it’s about the integrity of the chain - they have no way of knowing what’s happened to food once it’s been bought. It’s like pharmacists refusing to take back medicines - safety has to be everything.

Obviously, they do take clothing etc back.

Quite right too - unless of course it is faulty

I would hope so!