As below due to we have problems for the installation, did request the sales start arguing which is his inner problem.
So I email ask the technician manager if their company do have installation with charge or free of charge, or need to reach the amount for an installations
He reply as below that they do have free of charge service of installation , no matter of the amount , but recently they are quite busy, if we have technician to do the installation they will deliver the product,but if need them to install, need to wait for some time.