Scarlet invoice

I'm not with Scarlet but with Telenet, but I have the same situation. One invoice for internet and TV.

I upload the invoice to Dexxter but only enter the internet part as an expense. I then apply my % professional use to that. In the notes field, I clarify the total amount from the invoice (I include the amount excl. VAT, the vAT amount and the amount incl. VAT) and that only the Internet portion (where I also include the amount excl. VAT, the vAT%, the vAT amount and the amount incl. VAT) is booked as professional use for a certain percentage and that the rest is 100% a private purchase. By providing all the details, you can still find out all the details later (in the event of an audit or to gain more insight into your costs yourself).