What type of garter snake?

[Paul12345678]

Hi im new to this forum so firstly hello everyone,
if possible i was wondering if you could give me abit of advice?
Basically i ordered a garter snake from a uk supplier,a red sided garter snake,here is the image which was the for sale picture(in the link)going on research and other peoples opinions it is a californian red sided garter (thamnophis sirtalis infernalis)so as the image was that,i was expecting that locality to arrive!!
they sent me this little guy(in the link) judging by what people have said he is most likely a common red sided garter snake(thamnophis sirtalis parietalis).
would be nice to know what you guys think?if so how much would each species cost roughly in english £££s.
i will be getting back to the company as i feel it is almost false advertising!!and wrong.I would just like to know exactly what i have 1st!!!
any info would be great!!!(p.s sorry if this post has gone through two times,the first attempt didnt seem to work :s)
cheers
paul