I’ve just had these altered and they have done it by shortening from the top and replacing the heading tape.
However, the replacement tape is not like ones I’ve used before where you pull then tie off the threads at both ends of the curtain.
The ends of the thread are stitched to the heading tape - I’ve picked at one to show that there is no loose thread dangling at the end.
So how do I deal with these (the 3 parallel threads) - do I just keep pulling them and when I have enough length try to tie them off?
Don’t want to ruin them!