It will be up to the Dell support manager in your region to decide which monitor would be used when doing an unlike monitor model exchange. Every monitor exchange will be refurbished used. I can give you the Dell policy parameters.

When Dell does an unlike monitor exchange, the replacement/substitute is based on the following in descending order of importance =
* Current market price of the original monitor
* Size of the original monitor
* Maximum resolution of the original monitor
* Ports available on the original monitor

You can of course refuse the different monitor and they can continue to send you replacement U2718Q.

I never stated that the last one was not broken. I was simply showing you the policy that they will be working.

Thanks for your answer... 

I know the company's policy but I also know the difference between refurbished used and damaged...

You said 

''When Dell does an unlike monitor exchange, the replacement/substitute is based on the following in descending order of importance =
* Current market price of the original monitor
* Size of the original monitor
* Maximum resolution of the original monitor
* Ports available on the original monitor ''

another parameter is to work !!! 

I will upload pictures to understand who reads the article that it is not replacement monitors but garbage...

Αll replacement monitors were broken , not the last one only.

I believe that the company's policy does not say that it will send broken monitors one after another.

That's my problem... 

I paid  759.00$ for a monitor and I do not have a monitor... Τhe only ones I have are not working replacement monitors every 3-4 days.

I hear your frustration. All they can do is keep sending you a replacement until one arrives that is not broken.