Pull through is a bad problem.
It usually happens because you haven't given the lace/tape glue dissolver long enough to work properly.
Also, when you wash the piece, rinse it through with the lace side upwards to keep the hairs going in the right direction.

I have had premature shedding and pull through, both in one piece bought from a different supplier.
The piece only lasted a month.
On the second piece from the same supplier I used a knot sealer and its been perfectly fine.