Absolutely; I'll definitely give some more time, and communication thus far with seller (although not heard back for 2 days) has been succinct and polite.
The delay wouldn't be an issue; it's more the seller not doing as they (which they didn't have to) said they would, coupled with a static Parcel force status that causing a bit of unease.
I'll give it until the end of the week and if nothing will open a dispute.
Thanks again
Unrelated...but i once had a parcel 'stuck in transit' with Hermes which never arrived.It was an Amazon purchase though,so no quibble and it was despatched again.
I have read that 1 million items a year get lost in the post.......lost,stolen or never despatched at all,who knows?