refactor code
Sellers at 2023-06-19:
- Avra Tours - [AVR]
- CyberLogic - [CYL]
- Welcome Holidays (Mega Travel Selections) - [MGTS]
- Beleon - [BLN]
- Filos Holidays and Travel - [FHT]
- Kalamaki Travel - [KALT]
- Le Grand Tourism Enterprise - [LGTE]
- Holiday Moments - [HLDM]
- El Greco Tours - [EGT]
- Master Group Tour Operator - [MTT]
- KCG Travel SMPC - [KCG]
- Beleon Tours - [BLT]
- Heliades - [HDES]