Hi has anyone else found there garden open in the morning when the froze it before they left the night before,this has happened to mine several time now,a friend says it has happened to them as well ??

This has happened both to me and a friend. I wrote to the developers who say it can't happen. I know it did happen. Nothing can be done.

Thanks that's 5 of us that are having this problem

That has happened to me many times.

I have a vague recollection of someone saying that they accepted a gift, which unfroze their garden.  Could that be causing it?

That is certainly one of the things which causes it, yes.

Sometimes it's because the link people use to access their garden somehow becomes corrupted and has the "unfreeze" command added to it, so although the garden has been frozen, it looks as if it hasn't when the garden owner accesses it, but it's because they used that link to access it (so it unfreezes at that point).

Sometimes it happens when the garden owner freezes, then uses the back button to leave the garden - in some browsers that undoes the last action, so the garden unfreezes at that point.

If I freeze my garden via my iPad I have to then re-load the page to double check its frozen. If I don't and I then access my garden via my iPhone it can somehow conflict and unfreeze it and vice versa.

I freeze at bedtime then don't go back online until the next day ??

I have the opposite, I freeze my garden for the night, get up, unfreeze, do some morning things, look again - frozen again.

Daniela - check the link that you are using to access the garden.  Have a look in the address bar, and check that when you go to the garden, it doesn't have the "freeze" command at the end of it.  Like I said above, the links sometimes get mixed up or corrupted, so that if you access your garden using a corrupted command, it will tell your garden to freeze/unfreeze without you noticing.

I don't know how it happens but it does, sometimes.