Delayed Delivery, Poor Feedback, No stock

I Ordered a 500l eco tank online, as the delivery date indicated the 12th of Feb 2018. I placed the order based on that date. I have been following up, but nobody can give me a date, and now the order was transferred to another branch, that still cannot give me a date and say it can take up to 60 days.

I was ok waiting for a bit, but now I'm told to wait until the end of the month (2 weeks after it was supposed to arrive in stock). They cannot guarantee my stock will be ready by then either.

I do not see why their logistics and procurement department cannot make call and get proper information on stock numbers and lead times from the supplier.

Its unacceptible that I am told "I must just wait". Thats *******. I ordered that particular product based on the availability date, and would have opted for the 260l rather if they arrive around the same time, if not before the 500l.

I would of preferred the 260L tank, and only purchased the larger tank because it was arriving a month before the 260L tank, which doesn't seem to be the case.

I do understand the supplier is under pressure with back orders, but surely better feedback can be provided. If the 260L eco tanks are arriving before the 500L, I would prefer my order be changed to either one or 2 of the 260L tanks be supp****. (its just about the same price for 2 x 260L s the 1 x 500L I ordered.)

Can this be arranged?