That happend for a lot of people using PayPal, you should always check their TOSs and also make sure you are not selling any services which are against them.
Sad, alertpay isn't any alternative any longer, else you could have tried to open an account with them.
There is almost nothing to do if PayPal decided to limit your account, except to provide all the information they ask for.
I am not sure about this. May be you must have violated their TOS by paying some gambling, adult oriented products or membership. This things happen frequently because even president George Bush's PayPal account was also limited.
There is no such thing as getting your account limited forever. All you have to do is provide the documentation they've asked for which shouldn't be a problem if you are running a legitimate business.
Hope busybee's idea works for you pluma. If that's all they are asking for, then send in the required documents and then hope Paypal releases your account. Did you have much money in the account before this happened?
Things are going smoothly for me, I have furnished all the documents at the time of signing up. Usually nothing goes wrong, I have not come across anyone being harassed over at paypal.
Well this is PayPal for you... The best thing to do is just goto the bank and have your card/account changed, and re-create a new PayPal account. They have no legal rights to stop you remaking an account.