A very attractive price for any service is always "tempting", however, you list of qatar whatsapp phone numbers have to be very careful when evaluating the cost-benefit, especially if your campaign or company is serious and must take care of its reputation and the security of its clients' information, as well as the way in which the message reaches them.
These factors, among others, are compromised when your messages are sent through “grey routes”, as they pass through several telecommunications networks in different countries, losing part of the guarantees of the process, in terms of data protection and delivery. There is even the possibility that the delivery of these messages may be completely interrupted when the operators in your country detect the fraud.
After-sales: After-sales service says a lot about the commitment and seriousness of the supplier. When it comes to technology, extended warranties, service levels (SLA), support and technical service are important factors. Productive advice, and in the case of products, the option of returning goods or cancelling the contract if the service is not adequate, or the acceptance of reasonable penalties by the supplier in the event of non-compliance, are other aspects to consider.