Absurd postage charges

[thecrazyfamily007]

Lately there have been a few items where, when received, the actual postage charge was several times the real charge, if special delivery is what the seller offers, I totally understand that it costs more, but if I get the item then as 2nd class, large letter, unsigned for, in the flimsiest packing ever and paid 9 for postage, I really feel ripped off. Is there any way of holding the sellers to the delivery they promise?

Edited to add:

PS: Been in touch with eBay regarding it, as the seller was pretty awful and called me a lot of things for contacting and asking why I paid for special delivery (with a considerable surcharge for packaging) when I got it as a 2nd class letter, ebay said they consider it price gouging and encourage to report it, they will also force sellers to refund excessive postage charges. I really don't quibble about the odd pound more for packaging, but if I am paying several times the actual cost and they don't send with the service they claim to send, it feels like a blatant rip off.

[papso22]

To respond to your edit.  If a seller does not post by the advertised method then you are entitled to reflect that in feedback.  Other than that, there is nothing you, or ebay can do.  Ebay cannot force the seller to refund you the excess, that is yet another lie by ebay telling you what you want to hear.