good morning maam/sir.. after the expiration of...

We would like to inform you that UAE expats can renew a tourist visa or visit visa of all kinds after it expires for 30 days, only twice, without the need to leave the country and return again, in return for a fee of AED 600. Who wants to extend the visit or tourist visa has to apply 30 days prior to the expiry of his visa through the sponsor who issued the visa through the offices of tourism and airlines.
In case of overstay, he will not be able to extend his visa and will be obliged to leave the country and return with a new visa if he wants to return.

Yes, especially during the period of visa's validity is under the commitment and responsibility of the sponsor