Repeating earlier posts a bit but from what you say you were cleared to join the circuit on base leg without any additional restriction. I would expect you to join on that leg and continue around the circuit as you would normally making the appropriate calls. If you don't get a landing clearance - for any reason - then go around.
That's the easy answer but, as was pointed out earlier, it's a situation that really shouldn't arise. I don't think anyone has suggested that this was anything other than very poor practice - have you taken it up with the airport authority? Perhaps a letter to the Airport Manager, copied to the CAA, might get you a decent response.
Whatever you do, some of the comments being made are in the thread are rather worrying and show some basic misunderstandings about ATC. Not wishing to pick on sharpshot particularly, but
* the idea of having to do a dog leg to lose height and get on the glidepath means that some other procedure hasn't been followed correctly,
* TWR controllers may have a screen in front of them (these days they probably have a multitude of the darn things), but these are aids to controlling the traffic. It's mainly done by looking out ou the windows. - that's why they're so big.
* decision height is nothing to do with the type of aircraft but is associated with precision instrument approach procedures. Having said that, it is good airmanship to have a height in mind at which you will go around if no landing clearance is received.