Trying to make conveyancer understand 'notice'

Fully prepared to accept that I am wrong but you will have to give reasons not clown faces if you want to play 'annoy Linda' on this one 

(if you're my conveyancer answer my email) 

we are buying a new build that at the time of exchange was not fully built. Completion is therefore on notice and we were told notice period is 14 calendar days 

intended completion is 30 April 

So far no notice has been received. I have tried to convey to solicitor and sales gimp at developer that unless they serve notice today, we won't be completing on 30 April. 
 

they don't seem to think this is so but have offered no explanation.  Whilst it may be the case the parties can agree not to insist on contractual notice, no one has actually suggested this or cited this as their reason for thinking not. Basically they are both giving every impression of cluelessness. 
 

I am so annoyed. Even I am better at my job than this 

Sales gimp won’t have been told works are behind and that it won’t be ready until mid-May and he’s also desperately hoping that turns out to be wrong so his commission will fall into this month.

Solicitor is used to the fact completion notices never arrive until after lunchtime and is expecting a fax at 4.59pm.

Yes of course 

I'm happy to complete on less notice if the conveyancer can make that happen 

conveyancer has just emailed (hi!) to say it is 7 days notice not 14. Well that's fine, but not what her letter after exchange of contracts said 

How are you supposed to move in at short notice, book removals, time off work etc?

presumably then you have to complete but not actually move in until it suits you.

can conveyancer not send you the contract so you can see for yourself?

We've booked movers, they are flex and won't charge cancellation. I've got that week off but can cancel if postponed. Currently renting and the dates create an overlap so none of that is too much of an ishoo, it's just annoying 

it is 7 days notice, her letter after exchange was wrong (lots of her letters are)

Bucket shop conveyancers are great.  The first house I tried to buy was subject to (and in breach of) an estate scheme because of their double glazing.  The conveyancer's solution was to try and get the owner of the original builder (now bust) to drive past and say it was okay.

I mean in hindsight I was being a massive testicle over the whole thing, but they were seriously suggesting it as an actual legal solution to the problem (rather than telling me not to be so fvcking precious / arranging insurance).