So her solicitor asked me to sign a draft, which states that I wave all my rights to defend in the court I would voluntarily accept the divorce. It has been sent to the court 2 weeks ago.
Er, that might not have been very clever. You did make sure that the document states that you both want a divorce in which neither party is found to be at fault, didn't you? If not, you could end up paying her cash every month until one of you dies. Even better, if you remarry, she can have her alimony increased to take into account the extra income your new wife brings to your household. This can be the case if both parties are found to be at fault.