Calling a foreign line

[Adjei]

How can I call a Tunisia number from Ghana with low airtime

[AnnS]

If you are a Vodafone Ghana Customer Vodafone UK would be unable to answer the question @Adjei and you are going to need to ask Vodafone Ghana this question here: Vodafone Ghana 

If you are a Vodafone UK customer roaming in Ghana see here: Charge Checker