can you reuse parcel force courier packs?

[bluecm]

i have just received some trainers in the post which aren't the right style and im sending them back for a refund.

i was wondering if i can send them back in the parcel force post bag they came in? stick some paper over my address and stick theirs on it?

 

[u2fme2]

OH yes

 

[bluecm]

OH yes

that a yes then?