I buy a fair few bulbs from Parkers each year ( mainly tulips which i treat as an annual) but also brought some Fritillaria persica and Fritillaria imperialis and they were fab .... once the lilly beetles were picked off that is . Other companies charge over £5 per bulb and as far as I can tell mine flowered as well as bulbs from other companies.
Maybe Parkers is overstretching themselves after all they are called J Parkers Dutch Bulbs so I would expect plug plants etc to not be their forte.
I did buy a Cercis from them last autumn and it was a little bit smaller than i was anticipating but considering it was nearly a 1/2 of the price of any of the other places I had seen it online I was not so bothered, anyway isn't patience a virtue.
As i have said on other threads on this subject, and not wanting to be a Parkers apologist, if you worry about plug plants getting smooshed in the post or being poor quality buy them from a garden centre. I mean if you were a little bedding plant I expect you would not take kindly to Royal mails treatment of you.
That does not excuse the lack of a refund issue which isn't acceptable