The operator has a programmed downtime for some systems.
Telekom said some services will be shut down Friday night through Saturday. Usually calls, SMS and data will work.
"Between 22 and 6 o'clock, some online services like telekom.sk, mojtelekom.sk, the Magenta portal, the posta.telekom.sk webmail platform and the Telekom application will be restricted," Telekom said in a media report.
There will be no refunds and full multi-hour invoice management, activation of the data package, roaming packages, easy card recharge, service lines (splitting, Easy and Business). It will not be possible to buy tickets for public transport, parking or send SMS to donors.
The reason for the planned shutdown should be the "IT systems innovation" of the operator.
If the SIM card is stolen or lost, you may be asked to block it by calling 0800 123 777.