Hi Ajmal,
I'm afraid where there is a fault on the line it needs to be reported to our suppliers, who are the ones arranging the fix. We did this on Saturday as you requested, and from looking at the fault it seems an engineer has been assigned a task to fix it. I'm sorry that didn't happen last night, we'll chase it for you today and try to get the fix hurried along but I'd also like to say you'd have had exactly the same thing happen no matter which provider you were with - it's just how phone faults are fixed.
Nontheless I'm sorry it's not working at the moment and hope it's fixed soon for you.