I mentioned in the listing that the phone would not be posted till the funds cleared into my bank account from pay pal

There is absolutely no reason why anybody should wait until payment clears into their bank.  The only thing it will achieve is to annoy the buyer.  If the buyer claims INR or SNAD having no money in your PP account will not help, PP will get it back one way or another.  I generally stay away from such sellers, because it only shows their lack of understanding how PP works and/or it means they are expecting trouble with transaction = like knowing they left out something important from the description.

The PP notice of payment says "you have received $X from.....   and you can now post your item" ; the money is yours and you have no moral right holding onto the item.

Of-course, some people are unable to post every day, but that is another matter; saying can only post Friday because...........  is a different to saying I will hold onto your money and item for several days for absolutely no good reason at all.