SEO positive results

Here is my quotation for the idcphuket website recommended updates / rewrite / new look and seo project for your PADI IDC / diving website. Have given the list below to aweb copy expert to give me an idea of costings for the project to rewrite the site and perform SEO operations on it to optimise it as a standalone site and as one of your 3 sites.
Re-write of 22 pages to be totally unique content £350 (3-4 days work)
Update of website template to be the same as idcthailand.com £100* ** (2 days)
SEO optimization of site (on-site optimisation) £200 (3 days)
SEO off site work (1 day) £75
After the project the client stated:
I put “cheap padi idc” into Google and …. idcthailand.com was on the first page, idcphuket was on the second and indepth was on the third
I have noticed that idcthailand has started to rank higher than indepth a few months ago now, any idea why ?? I know that you have been working hard on both of them, I am just surprised that the normal strings I put in looking for indepth / competitors idcthailand is appearing higher.
I was astonished that idcphuket appeared on the second page I thought it had vanished completely, this is much better than I expected. In Google I just put:  “padi idc internship” and idcphuket came up on the second page ahead of indepth, didnt expect this but its good I have my sites ranking highly.
I don’t believe this, I searched for ‘padi idc Phuket’ in Google  All 3 domains come up on the first page, this is an excellent result
Idcphuket is 3^rd
Indepth is 4^th
Idcthailand is 8^th
Great Google results, What have you been doing wonder boy?
I have lots of business and multiple inquires so far this year, about 80%  I think from indepth and a few from idcthailand, which is very, very good. At least the websites seem to be doing OK so it’s not that bad for me. Had lunch with the examiners, and they said that IE numbers so far are normal this year, 33 on the IE this evening, and that’s with zero candidates from me. Thanks for the hard work !!
Anyway just a random comment, not sure if I am going to work tonight or not, but if not I am still planning 3 or 4 days just on website work next week