Synching Contacts iOS to Google - contacts not transferring to Google

I have followed these instructions to the letter including re-booting and starting again. My Contacts are currently on my iOS device but are not being transferred to my Google contacts. When I open the contacts on iOS, it does not seem to have the turning wheel idicating that it is synching. My google contacts are empty and my ioS contacts are stubbornly sitting there. Why is it not transferring? Could it be the number of contacts that I have? (2900) Any help would be most appreciated....