financial gift from relative - is it ok?

Hi everybody,
I am in the ESA support group. My mum wants to give me some money for my birthday. I don't want to accept it if it will create more problems than it solves. If anybody could advise about this I would be grateful ..
She has done this before and it has not caused a problem. How frequent would these gifts have to be for it to cause a problem? she has not done this for several years, so it is not like I am receiving a regular allowance at regular intervals.
Am I required to inform the DWP if the gift does not take me over the permitted limit for savings? Will they find out anyway? Are the banks required to notify them? I can't shake the notion that even if I am not legally doing anything wrong I am somehow inviting complications.
Forgive my paranoia. I admit I am paranoid, but I don't want to get dragged into some `benefits compliance' investigation, and there seems to be a suggestion elsewhere on the site that support group recipients are being targeted at random for these because there is no other way the DWP can harass them. I would rather not throw a spanner in the works and mess things up for myself if this is likely to happen,
thanks,
droopy

Thanks very much for your reply. Did you mean by this that at any point, for any reason they see fit, your bank can reveal details of your account to the DWP without your consent or even prior knowledge? Would the DWP have to contact them first to ask for it or are the banks duty bound to pass on information to the DWP that might be useful to them?
Forgive my ignorance, and for bothering you about this,
Droopy

If you ask for your Mum's gift to be given in cash no one will be any the wiser.

Thanks very much for that reply. That makes perfect sense. So if you start paying a lot more tax on your bank account earnings than usual this may trigger an inquiry. thanks again for clearing that up.
Droopy.