This is the best and unique way, for individuals and for the companies whose employees are frequent travelers, not to be concerned about the limit of their talking/data time, when using their businesim card and airtime while traveling.


The main advantage of this feature is that apply for multiple users of businesim cards in a company. The system is 1) toping up only the cards which reached the minimum value (priory indicated) and 2) the airtime is distributed and directed to the heavy users who need more time according to their use. So each user within the group is toped up only when reaches the min. amount that the administrator have indicated.

The administrator of the company, with an AUTOMATIC TOP-UP FIXED ORDER can define :


   -The minimum balance for businesim holder, which when reached, automatically tops up airtime

   -The top up amount specified in prior.
   -The monthly max. limit of top up for each user.
   -The total (WALET) amount to be credited (which will be available to be used from all the businesim holders of the group).



Once this application is set up, you do not have to do anything your self anymore. businesim is doing it for you.

Each time your balance gets under this value the procedure of adding airtime to your number will be automatically completed by our system. The airtime will be available without interruptions of your communication. When your WALET use the last auto top up you will be notified in order to credit your WALET.


Note: The air time is both for voice and data usage of your phone.



If you are already a businesim card holder and you wish to add airtime or send free sms, please first register to our website or log in if you are already a member.




Important notes for purchasing businesim :
  • Companies within or out of EU are not subject to VAT provided that are VAT applicable and any other proof which demonstrates that the companies are taxable entities. Upon payment is concluded companies must send scanned copy (send to: of one latest billing invoice (water, electricity or telcon or other invoice) proving the status of the company.
  • Kindly insert full company details, including the VIES or VAT numbers, to avoid VAT fees. After registering your self when log in, please choose the NON VAT applicable member option.
  • On registration Companies are obliged to declare their VAT or VIES numbers.
  • In case you are initially registered as individual and wish to re-register as company kindly inform us in writing by email in order to proceed for necessary steps.
  • All Individuals within EU are subject to 20 % VAT invoicing..
  • VAT rate 20 %, wherever applicable will be discounted from the airtime.
  • For individuals, the applicable VAT 20 % will be included in the total invoiced price. VAT of 20 % will be deducted from the free airtime of businesim card airtime.
  • Individuals out of EU are not subject for VAT provided that will send (send to : passport copy, and residence address.
  • In case you pay by credit/debit cards you will be invoiced and charged in BGN (Bulgarian currency) equal to your Euro total invoiced amount at the fix banking rate between Euro and BGN at 1.95583. (1 Euro = 1.95583 BGN). for example the cost of the starter kit is Euro57.50 i.e. BGN 112.46
  • In case you pay by wire transfer you will be charged in Euro.
  • In both ways of payment, your invoice will show the value of the invoiced amount in both currencies (Euro and BGN equivalent).