Figured a workaround for Google Adwords My Client Center

After agonising over no support from Google regarding their My Client Center not sending request emails to clients, I discovered that only once you have set up your client's first campaign through their login, it will prompt them to accept the link invitation. While there isn't much documentation on this from Google, it worked.

Still waiting to hear back from since the issue was "escalated" some time ago though in their last email they indicated that the problem was "of some concern" to them.

But at least I'm able to now use Adwords for my clients, though having to request their login details to do it, does kinda defeat the purpose of the whole My Client Center concept ;)