Only users with administrator rights have functionality to increase payments limits. Go to internet bank and on the right top press on settings button.
If you have administrator rights but you do not see the “Change limits and permissions” button in the “Limits and permissions” section, then write a message to the Bank by clicking on the envelope icon in the right corner of the internet bank window. In the message, please specify the account number, currency, the amount of the limit you want to change to and the name of the limit (e.g. payment, day, month).