Have a problem in obtaining my puk number

I have been trying to call Mtn 808 since Tuesday to obtain my puk number for the number *** since my phone is blocked until today I have had no joy what so ever<br> <br> <br> I then emailed there call centre on on December 17 seeking assistance they gave me reference no. *** and they promised to attend to problem urgently which they didn't do I then emailed them back again on Friday December 18 but they asked for my ID no.my bank name,address address, cellphone number of which I gave it all to them but still my problem hasn't been resolved. <br> <br> As I am writing this complaint have been and still unable to receive calls from my loved one's since Tuesday December 15 because currently I don't have sim card that is working <br>