Removing home phone 1571 free component

[#1]

Why does this take 3 working days

[#2]

That's how long Openreach take to complete the order

[#3]

Thinks 
Time to check order is correct - 5 mins
Time to produce all the paperwork - 8 hours
Time to instruct operative to press a few keys - 5 mins
Time for operative to find something better to do - 8 hours
Time for operative to find instruction which was lost while thinking of something better to do - 7 hours 45 minutes
Time to do it - 5 mins
Total time 3 x 8 hours = 3 working days based on an 8 hour day

[#4]

Ben's right, I'm not sure how right your chain of events is though Jim