Matiz shared with his fans on his social media account that his concert was postponed due to an "upper respiratory tract infection linked to Covid."
Making a statement on his social media account, Matiz used the following expressions:
"ANNOUNCEMENT
I would like to inform you that I am regretfully forced to postpone our concerts, which were planned to take place at the Harbiye Open-Air Stage on July 17-18 and for which all tickets were sold out, due to the Covid I am currently experiencing and the resulting upper respiratory tract infection.
Although treatment continued until the last minute in order to meet with you, my doctors and my team have concluded that I need a little more time to fully recover. I am very sorry that I am not in a condition to take the stage and give you the concert you deserve.
In order to offer you a healthier concert experience, we are not canceling these two concerts, but rather, asking for your understanding, postponing them to a later date. As soon as the information regarding the new dates is finalized, I will announce it here again.
With my sincerest apologies and love,
Mabel."

News Source: 12punto