A (huge) number of vs. (huge) numbers of

A Telegraph article titled "Tumble drier scandal: Whirlpool 'sold out' of popular replacement machines" has this:

The Daily Telegraph has heard from a number of frustrated Whirlpool customers who have been unable to get the replacement they want.

Belinda Marsh says she first registered her dryer as faulty with Whirlpool in September but last week heard from Whirlpool, which informed her that the dryers which meet her requirements are all out of stock. She said she was told to keep looking online as they are "regularly" coming back in stock.
...
If Whirlpool's stock issues are not resolved it could lead to huge numbers of customers becoming tempted to use their machines as a result of being forced to dry their clothes by hanging them up for week or months on end.

In front of the same noun customers, the first sentence has a number of and the last huge numbers of.

Can you replace a number of with numbers of in the first sentence?
The Daily Telegraph has heard from numbers of frustrated Whirlpool customers who have been unable to get the replacement they want.

Also, can you replace huge numbers of with a huge number of in the last sentence?
If Whirlpool's stock issues are not resolved it could lead to a huge number of customers becoming tempted to use their machines as a result of being forced to dry their clothes by hanging them up for week or months on end.