Almost always for something procedural rather than substantive. An attestation missing from a certificate, a medical that expired during the process, a passport with less validity than the route requires, or a name transliterated differently across two documents. All of it is checkable before filing, which is the entire point of the eligibility step.

That is the usual case. A new company needs its establishment card, its first visas and its books set up in the same few weeks, and those things depend on each other. Running them through one firm means the trade licence details, the entity structure and the timing are consistent across both, instead of being re-explained to a second provider.

It depends on the route and on the authority, and any firm quoting you a single number for every case is guessing. What we will give you is the realistic window for your specific route at the eligibility stage, and tell you which steps are within our control and which are not.